长期以来 ,在牙颌畸形的矫治方法中 ,活动矫治器始终占有相当重要的地位。由于活动矫治器病人可以自行取戴 ,所以如果病人不配合 ,则很难得到理想的矫治效果 ,矫治时间延长 ,造成病人大量积压 ,给牙颌畸形的矫治工作带来一定困难。为了更好地配合临床工作 ,提高矫治效果 ,我们 For a long time, active orthodontics always occupy a very important position in the treatment of dento-maxillofacial deformities. As the active appliance can be worn by the patient, if the patient does not cooperate, it is difficult to get the ideal effect of orthodontic treatment, prolonged orthodontic treatment, resulting in a large backlog of patients, which brings certain difficulties to the orthodontic treatment. In order to better cooperate with clinical work to improve the effect of orthodontic treatment, we